Thanks Dan,
I really appreciate your help and i think you are right, Pools doesn't
define "Levels", but a collection of similar volumes.
Levels are something related to jobs, not to pools, even though a pool
contains volumes of the same job level.
You solved my problem, i didn't know that it was possible to specify
"IncrementalPool=" in a "Run" definition, now i know that is possible to
have more than 3 pools for a job, so i can have all the "Levels" or better
"Retention periods" that i want.
I have only one more question for you:
why do you think that is useless to run incremental every three hours and
then again daily?
Hourly backups have different retention periods than daily ones, that's why
i have to store them in different pools.
Thank you again for your help.
2013/1/28 Dan Langille <d...@langille.org>
>
> On Jan 28, 2013, at 10:21 AM, stefano scotti wrote:
>
> >
> > Hi everybody,
> >
> > I've been using Bacula for 1 year, before then i used to write my own
> scripts.
> > I see, and correct me if i am wrong, that bacula allow only a maximum of
> 3 backup levels:
> >
> > Level 0: Full
> > Level 1: Differential
> > Level 2: Incremental
> >
> > This means a maximum of 3 pools per job.
>
> I consider Pools to be a collection of Volumes with similar attributes.
> Stop thinking about levels. Start thinking about retention.
>
>
> > Now, if i have to implement this example of recovery schema:
> >
> > Every month for a year
> > Every week for 6 months
> > Every day for a month
> > Every 3 hours for 2 days
>
> I think the above corresponds to
>
> > Every month for a year FULL
> > Every week for 6 months DIFFERENTIAL
> > Every day for a month INCREMENTAL
> > Every 3 hours for 2 days INCREMENTAL
>
> With different retention times on each
>
> It sounds like you want four pools
>
> FULL - retain 1 year, scheduled to run monthly
> DIFF - retain 6 months, scheduled to run weekly
> INCRMONTH - retain 1 month, scheduled to run daily
> INCR2DAYS - retain 2 days, schedule to run every 3 hours
>
> Does that help you?
>
> First, what is your goal in running incrementals every 3 hours? And then
> again daily?
>
> > There are 4 different rotation rules and schedules... not three.
> > How am i supposed to solve this?
> >
> > With my own scripts, i would define 4 pools, and a job type for each
> pool:
> >
> > Level 0 Pool Type:Full
> > Level 1 Pool Type:Differential
> > Level 2 Pool Type:Incremental
> > Level 3 Pool Type:Incremental
>
> We came to the same conclusion, but stop thinking about level.
>
> You should also look at virtual backups.
>
> > Every pool with his own rotation rules which based on the recovery
> schema, and a job type for each pool.
> >
> > In my opinion it is wrong to bind the concept of job type and the
> concept of pool, they are 2 different things.
>
> What do you mean by Job Type here? Job type is backup, restore,
> copy/migrate.
>
> > I use a pool to define a group of volumes and their rotation rules, i
> specify a job type to define if those volumes will contain an
> incremental,differential or full backup.
> >
> > I hope i'm wrong with this and that i wasn't able to find the correct
> solution which Bacula proposes, if this is the case please help me to throw
> light on that. \
>
> I'm guessing at the schedule, and using mine as a starting point:
>
> Schedule {
> Name = "WeeklyCycle"
> Run = Level=Full 1st sun at 5:55
> Run = Level=Differential 2nd-5th sun at 5:55
> Run = Level=Incremental mon-sat at 5:55
> }
>
> Alter mine to become:
>
> Schedule {
> Name = "WeeklyCycle"
> Run = Level=Full 1st sun at 5:55
> Run = Level=Differential 2nd-5th sun at 5:55
> Run = Level=Incremental IncrementalPool=MONTH mon-sat at 5:55
> Run = Level=Incremental IncrementalPool=INCR2DAYS daily at 0, 3, 6, 9,
> 12, 15, 18, 21
> }}
>
> That should give you a starting point. Sorry it's not more complete.
> Others might have better ideas. there…
>
> --
> Dan Langille - http://langille.org
>
>
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